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Transparent copper reducing adapter with female threads

Legend Valve

Legend Valve 450-738 1-1/4 x 1-1/2 C x F Adapter bathware

SKU CH-B40Z-SSEYE

Copper reducing adapter joins 1-1/4 inch to 1-1/2 inch C x FNPT fittings

  • Size1-1/4 in × 1-1/2 in
  • Product colorTransparent
  • Product typePipes, Valves & Fittings
  • Copper reducing adapter joins 1-1/4 inch and 1-1/2 inch pipes
  • Female NPT thread provides secure threaded connection
  • Transparent finish allows visual inspection of joint
  • Legend Valve brand ensures reliable plumbing performance
  • California Proposition 65 warning applies to this product

Copper Reducing Adapter for Bathware

The Legend Valve 450-738 connects 1-1/4 inch copper pipe to a 1-1/2 inch female NPT thread. It suits installers fitting new bathware or adapting existing supply lines in residential plumbing. The transparent finish allows visual confirmation of solder flow during assembly. This new component ships directly from the manufacturer.

Behaviour Under Sustained Load

The copper construction resists corrosion and handles continuous hot-water circulation without degradation. The reducing design maintains flow integrity across the 1-1/4 by 1-1/2 inch transition during prolonged demand. No internal moving parts mean performance remains constant over the service life. The adapter is rated for standard plumbing pressures.

Thermals Noise and Power Draw

Copper dissipates heat from hot water lines efficiently and operates silently. No electrical power is required for this passive fitting. The material withstands typical domestic water temperatures without softening or leaking. California Proposition 65 warnings apply for chemical content.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 61% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameLEGEND VALVE
Product colorTransparent
Product typePipes, Valves & Fittings
Size & build
Size1-1/4 in × 1-1/2 in

Questions about this item

How much heat does the 450-738 adapter generate during continuous water flow?

The copper adapter itself produces no heat; it simply conducts water between the 1-1/4 inch and 1-1/2 inch connections.

What piping must I already have to install this C x FNPT fitting?

You need a 1-1/4 inch copper pipe for the sweat end and a 1-1/2 inch female NPT threaded component for the other side.

Will the 1-1/4 by 1-1/2 size work with older 1-1/2 inch copper supply lines?

The sweat end fits 1-1/4 inch copper only; the threaded end accepts 1-1/2 inch male NPT, so older 1-1/2 inch copper would need a different adapter.

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